The Three Most Overlooked Technical Details in the Installation of Diffused Silicon Pressure Transmitters

As a key device in industrial flow control, the installation details of the MBC-1 pressure transmitter directly affect measurement accuracy. However, manuals for diffused silicon liquid and gas pressure sensors often omit 3 critical installation points, causing 90% of technicians to experience errors during calibration and application. This article will reveal these overlooked details to help you correctly select and install pressure transmitters such as the PN-M2 and YBS-S100 series.

Detail 1: Selection of Installation Position for Medium Temperature Compensation

When installing the PCM-D pressure transmitter, 90% of technical documents do not explain the impact of temperature gradients on diffused silicon sensors. Actual tests show that when the temperature difference between the ambient environment and the medium exceeds 15℃, improper compensation can lead to a measurement deviation of ±0.4%FS. The following measures are recommended:

• The sensor body should be installed 1.5-2 meters downstream of the medium pipeline
• Avoid installation within 3 meters of heat radiation sources or cold sources
• For high-temperature application scenarios such as the DY-X pressure transmitter, heat dissipation fins need to be added

Particular attention should be paid to the thermal balance of the installation position when selecting the domestic differential pressure transmitter FST800-901 air pressure sensor gas micro differential pressure transmitter, especially due to its medium temperature range requirement of -20℃~85℃.

Detail 2: Standardized Solution for Vibration Isolation

The MS-MS132 pressure transmitter manual only briefly mentions vibration protection, but in actual industrial scenarios, pipeline vibration can cause an error accumulation of ±0.01%FS/Hz in diffused silicon sensors. We recommend:

This solution can ensure that the HB-S pressure transmitter still maintains calibration accuracy in a 200Hz/g vibration environment.

Detail 3: EMC Protection Implementation for Electrical Interfaces

The CEQ-CEQ1300 pressure transmitter manual does not clearly specify electromagnetic compatibility treatment for signal lines. Actual cases show that unshielded 4-20mA circuits can generate an induced potential difference of 0.5V/m in strong electromagnetic fields. The following must be implemented:

1. Use twisted-pair shielded cables （shield layer grounding resistance ≤4Ω）
2. Maintain a distance of at least 30cm between signal lines and other power cables
3. Install a signal isolator at the PLC end

This measure can improve the anti-interference capability of explosion-proof transmitters such as the FST800-901 by more than 60%.

Professional Technical Solutions

The diffused silicon sensor series products of Xi'an Shenghongchuang Instrumentation Co., Ltd. （including PN-M2, YBS-S100, etc.） adopt military-grade packaging technology, and their IP67 protection rating and Exia II CT5 explosion-proof certification can handle complex industrial environments. Our engineering team provides:

• On-site installation guidance services
• Customized calibration solutions
• Lifetime technical consulting support

Especially for precision instruments such as the domestic differential pressure transmitter FST800-901, we provide free installation assessment reports.

Summary and Action Recommendations

Correct installation methods can improve the measurement accuracy of pressure transmitters such as the MBC-1 by 30%-50%. It is recommended that technical evaluators, when selecting models:

• Give priority to technical documents with installation guidance
• Require suppliers to provide on-site verification reports
• Conduct pre-installation testing for special models such as DY-X

If you need to obtain the complete installation technical white paper for pressure transmitters such as PN-M2 and YBS-S100, please contact our technical consulting team immediately.